The following reply was made to PR install/47580; it has been noted by GNATS.
From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: davidfiedler%verizon.net@localhost
Subject: Re: install/47580: Error trying to install NetBSD-6.0-amd64.iso
Date: Wed, 20 Feb 2013 17:35:05 +0100
Ok, I don't know that installer, but obviously it does not know NetBSD
either. It is probably easiest to use a native USB install image like
http://ftp.netbsd.org/pub/NetBSD/NetBSD-6.0.1/images/NetBSD-6.0.1-amd64-install.img.gz
You can write it to your USB memory device either with dd if you are using a
unix like OS already, or with Rawrite32 if you use windows. The latter
you can get here: http://www.netbsd.org/~martin/rawrite32/
Martin